EP4031776A1 - Bremsvorrichtung für ein fahrzeug sowie fahrzeug mit der bremsvorrichtung - Google Patents
Bremsvorrichtung für ein fahrzeug sowie fahrzeug mit der bremsvorrichtungInfo
- Publication number
- EP4031776A1 EP4031776A1 EP20765190.2A EP20765190A EP4031776A1 EP 4031776 A1 EP4031776 A1 EP 4031776A1 EP 20765190 A EP20765190 A EP 20765190A EP 4031776 A1 EP4031776 A1 EP 4031776A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- insulation
- section
- brake
- brake body
- wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
- B62L1/00—Brakes; Arrangements thereof
- B62L1/02—Brakes; Arrangements thereof in which cycle wheels are engaged by brake elements
- B62L1/06—Brakes; Arrangements thereof in which cycle wheels are engaged by brake elements the wheel rim being engaged
- B62L1/10—Brakes; Arrangements thereof in which cycle wheels are engaged by brake elements the wheel rim being engaged by the elements moving substantially parallel to the wheel axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K3/00—Bicycles
- B62K3/002—Bicycles without a seat, i.e. the rider operating the vehicle in a standing position, e.g. non-motorized scooters; non-motorized scooters with skis or runners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
- B62L1/00—Brakes; Arrangements thereof
- B62L1/005—Brakes; Arrangements thereof constructional features of brake elements, e.g. fastening of brake blocks in their holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
- B62L3/00—Brake-actuating mechanisms; Arrangements thereof
- B62L3/02—Brake-actuating mechanisms; Arrangements thereof for control by a hand lever
- B62L3/023—Brake-actuating mechanisms; Arrangements thereof for control by a hand lever acting on fluid pressure systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
- F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
- F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
- F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K2202/00—Motorised scooters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K2204/00—Adaptations for driving cycles by electric motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D2055/0004—Parts or details of disc brakes
- F16D2055/0058—Fully lined, i.e. braking surface extending over the entire disc circumference
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/78—Features relating to cooling
- F16D2065/785—Heat insulation or reflection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/78—Features relating to cooling
- F16D2065/789—External cooling ribs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/78—Features relating to cooling
- F16D65/84—Features relating to cooling for disc brakes
- F16D65/847—Features relating to cooling for disc brakes with open cooling system, e.g. cooled by air
Definitions
- the invention relates to a braking device for a vehicle with the features of the preamble of claim 1.
- the invention also relates to a vehicle with the braking device.
- disc or drum brakes in two-wheeled small vehicles such as scooters, scooters or even bicycles in order to brake one wheel of the small vehicle.
- the publication DE 200 16 878 U1 describes a scooter with a braking device which is designed as a hydraulically activated disc brake.
- the braking device has a brake disc connected in a rotationally fixed manner to a wheel and a brake caliper fixedly connected to the frame of the scooter, the brake caliper containing brake linings which act on the brake disc.
- the invention relates to a braking device which is designed and / or suitable for a vehicle with at least or precisely one wheel.
- the braking device serves as a service brake for braking the wheel during a ferry operation.
- the braking device can also be used as a fixed part brake serve when the vehicle is stationary.
- the wheel defines an axis of rotation, in particular with its axis of rotation, the wheel preferably rotating about the axis of rotation in a ferry operation.
- the wheel is rotatably mounted on a wheel axle.
- the wheel axle is a stationary axle which is firmly connected and / or can be connected to a frame or a wheel fork of the vehicle.
- the wheel axle is designed as a plug-in axle.
- the brake device has a brake body device which is designed and / or suitable for transmitting a braking force to the wheel, in particular a wheel rim.
- the rotating wheel can be braked and / or stopped by introducing the braking force.
- the braking force is preferably to be understood as a force which brakes the rotating wheel rim with the application of the force by means of friction.
- the braking force can be understood as a tensioning force of the brake body device against the wheel rim in the axial direction with respect to the wheel axle.
- the brake body device is preferably designed as a rotationally symmetrical and / or plate-shaped disk or annular disk.
- the brake body device can be made from a solid material, for example from metal, in particular from aluminum.
- the braking device has a concentric brake cylinder which is designed and / or suitable for generating the braking force.
- the brake cylinder is designed as a hydraulically actuatable brake cylinder.
- the brake body device and the brake cylinder are preferably arranged coaxially and / or concentrically to one another with respect to the axis of rotation.
- the brake cylinder and / or the brake body device can be arranged on the wheel axle, preferably in a rotationally fixed manner.
- the brake cylinder is arranged and / or received radially inside the brake body device, which is designed as an annular disk.
- the brake cylinder has an inner housing part for radial support on the wheel axle and an outer housing part for axial support on the brake body device.
- the inner and outer form Housing part together a ring housing encircling the axis of rotation.
- the inner housing part is preferably connected to the wheel axle in a rotationally test.
- the inner housing part can have a central through opening through which the wheel axle is guided or inserted.
- the outer housing part is preferably operatively connected to the brake body device in order to transmit the braking force.
- the two housing parts can be moved relative to one another.
- the outer housing part is displaceable in the axial direction with respect to the axis of rotation relative to the inner housing part, the inner housing part preferably remaining stationary on the wheel axis.
- the brake body device is axially movable together with the outer housing part.
- the outer housing part preferably transmits the braking force in the form of kinetic energy to the brake body device by axially displacing the brake body device towards the wheel, in particular the wheel rim, so that the brake body device rests against the wheel rim and / or is pressed against the wheel rim in order to achieve the brake rotating wheel.
- a pressure space surrounding the axis of rotation is formed between the two housing parts.
- the pressure space is preferably designed as an annular space.
- the pressure chamber is filled with a fluid, for example a hydraulic fluid, with the two housing parts being displaced relative to one another when a fluid pressure of the fluid in the pressure chamber changes.
- the brake cylinder is preferably designed as a slave cylinder, the pressure chamber for this purpose being connectable and / or connected to a master cylinder via a fluid connection, in particular via a fluid line.
- a fluid column is displaced via the fluid line in the direction of the pressure chamber, the feedable fluid column axially displacing the outer housing part so that the outer housing part transmits the braking force to the brake body device by means of a stroke movement.
- the master cylinder can be actuated via a brake lever or a brake pedal.
- a reset mechanism is arranged between the two housing parts in order to move the housing parts into a release position when the master cylinder is not actuated reset and / or hold in this.
- the restoring mechanism generates a restoring force which acts against the hydraulic braking force that is generated in the pressure chamber.
- the braking device have an insulation device which is designed and / or suitable for thermal insulation of the brake body device in the direction of the brake cylinder.
- the isolation device is arranged axially between the outer housing part and the brake body device.
- the insulation device has the function of isolating the brake cylinder, in particular neuralgic contact points between the outer housing part and the brake body device, against the conduction of braking heat that is generated during and / or during the introduction of the braking force into the wheel.
- the insulation device preferably has a coefficient of thermal conductivity which is significantly smaller than a coefficient of thermal conductivity of the material of the brake body device and / or of the outer housing part.
- the insulation device has a coefficient of thermal conductivity of less than 10 W / (m * K), preferably less than 1 W / (m * K), in particular less than 0.5 W / (m * K).
- the insulation device is formed by a thermally insulating composite material, preferably made of an organic and / or inorganic material and / or a heat-resistant plastic and / or a ceramic.
- the insulation device has an annular insulation section.
- the annular insulation section is designed as an annular disk.
- the annular insulation section is preferably arranged coaxially to the brake cylinder and / or the brake body device with respect to the axis of rotation.
- the ring-shaped insulation section is centered on the outer housing part and / or the brake body device in order to ensure, in particular, a secure and / or correct fit.
- the ring-shaped insulation section is designed in one piece.
- the annular insulation section rests against the brake body device in one axial direction and against the outer housing part in an opposite axial direction.
- the ring-shaped insulation section rests flat, preferably flat, on the brake body device and / or the outer housing part.
- the outer housing part preferably transmits the braking force to the brake body device with the interposition of the annular insulation section.
- the annular insulation section interrupts a heat path which runs from the brake body device as a heat-emitting component in the direction of the outer housing part as a heat-sensitive component.
- An insulation device which, in a simple and inexpensive manner, implements an interruption in the heat path between the brake body device and the outer housing part.
- the insulation device has at least or precisely one insulation section in the form of a circular ring segment.
- the circular ring segment-shaped insulation section is designed as a circular ring segment of an annular disk.
- the insulation section in the form of a circular ring segment is preferably and / or can be arranged on a partial circle concentric to the axis of rotation with respect to the axis of rotation.
- the annular segment-shaped insulation section is on the outer housing part and / or the Centered brake body device, in particular to ensure a secure and / or correct fit.
- the annular segment-shaped insulation section rests against the brake body device in one axial direction and against the outer housing part in an opposite axial direction.
- the insulation section in the form of a circular ring segment rests flat against the brake body device and / or the outer housing part, preferably over the entire area.
- the outer housing part transmits the braking force to the brake body device with the interposition of the circular ring segment-shaped insulation section, the brake body device and the outer housing part outside the circular ring segment-shaped insulation section being spaced from one another as viewed in the circumferential direction.
- the circular-ring segment-shaped insulation section interrupts a heat path which runs from the brake body device as a heat-emitting component in the direction of the brake cylinder as a heat-sensitive component.
- An alternative insulation device which, in a simple and inexpensive manner, implements an interruption of the heat path between the brake body device and the outer housing part and is also easy to assemble.
- the insulation device has at least or precisely one further insulation section in the form of a circular ring segment.
- the insulation device is preferably designed in several parts, the circular ring segment-shaped insulation sections, when assembled, forming an annular insulation component as the insulation device.
- the several circular ring segments are put together to form a circle in the circumferential direction.
- the circular ring segments can be positively and / or non-positively and / or cohesively connected to one another.
- the circular ring segments are supported on one another in the circumferential direction via a butt joint or are slightly spaced from one another via an air gap.
- the insulation device has more than two, preferably more than four, in particular more than six, of the circular ring segment-shaped insulation sections, which are put together and / or can be put together in the circumferential direction to form a circle.
- the isolation device can be retrofitted into an already installed braking device without having to remove individual components.
- the braking force can be transmitted uniformly to the brake body device.
- the inner housing part has a support contour and the brake body device has a counter-contour which is complementary to the support contour.
- the support contour and the mating contour are in engagement with one another to support the torque of the brake body device.
- the support contour defines a type of lever arm in order to absorb a moment about the wheel axis.
- the brake body device is preferably connected to the inner housing part, in particular the support contour, in a rotationally fixed manner and movably in the axial direction via the mating contour.
- the inner housing part can be formed by a housing component delimiting the pressure chamber, e.g. a hub, and a support component carrying the support contour, e.g. a support ring, the housing and the support component being non-rotatably connected to one another via the wheel axle.
- the support contour can also be molded directly onto the housing component, the housing component and the support contour being manufactured from a common material section, in particular in one piece.
- the insulation device has at least or precisely one axial insulation section, the support contour and the counter contour being thermally insulated from one another via the axial insulation section.
- The is preferably used axial insulation section for thermal insulation in the circumferential direction between the support contour and the counter contour.
- the axial insulation section extends in the axial direction between the support contour and the mating contour.
- the axial insulation section is preferably designed as a flat, in particular plate-shaped, web.
- the axial insulation section is integrally formed on the annular or circular ring segment-shaped insulation section and / or in one piece, in particular made from a common material section, connected to the latter.
- the axial insulation section rests in the circumferential direction on the support contour and / or the mating contour, preferably flat.
- the brake body device preferably transmits the braking torque to the inner housing section with the interposition of the axial insulation section.
- the axial insulation section interrupts a heat path which runs from the brake body device as a heat-emitting component in the direction of the inner housing part as a heat-sensitive component.
- An insulation device which, in a simple and favorable manner, implements an interruption of the heat path between the brake body device and the inner housing part.
- the support contour is formed by at least or precisely one support wing directed radially outward.
- the support contour comprises more than two, preferably more than four, in particular more than six, of the support wings, the support wings being evenly distributed in the circumferential direction around the axis of rotation.
- the mating contour is preferably formed by corresponding recesses, in particular axially extending grooves, made in the brake body device.
- the support wings are arranged on an outer circumference of the inner housing part and the recesses are arranged on an inner circumference of the brake body device.
- the insulation device has exactly two of the insulation sections per support wing, the two insulation sections each being the support wing grip on both sides.
- the support wing is arranged in a form-fitting manner in the circumferential direction between the two associated insulation sections.
- two of the axial insulation sections are assigned to each of the annular segment-shaped insulation sections, the two axial insulation sections jointly each encompassing a support wing or each with an adjacent further axial insulation section of an adjacent annular segment-shaped insulation section each encompassing a support wing.
- each of the support wings is insulated on both sides by an axial insulation section in the circumferential direction.
- the brake body device has a cooling structure on an outside, which is designed and / or suitable for dissipating the braking heat by means of convection.
- the function of the cooling structure is to conduct braking energy in the form of frictional heat out of the braking device.
- the cooling structure is preferably arranged on a side of the brake body device facing away from the wheel.
- the cooling structure has a plurality of elongated or swirl-shaped cooling ribs.
- a brake body device which dissipates a large part of the braking heat to the environment by convection. In this way, the transfer of braking heat to the temperature-sensitive components of the brake cylinder can be further reduced.
- the outer housing part is designed as a hollow cylindrical piston and the inner housing part as a hollow cylindrical hub for receiving the wheel axle.
- the piston is designed as a stepped annular piston which is supported in the radial direction in a form-fitting manner on an outer circumference of the hub.
- the hub is preferably received radially inside the piston.
- a first part of the pressure chamber is preferably delimited by the piston and a second part of the pressure chamber is delimited by the hub.
- the piston is linearly displaceable on the hub in order to act against the brake body device.
- the piston is preferably linearly guided on the hub for performing the axial stroke movement.
- a brake cylinder which is characterized by a particularly simple and compact structure.
- the brake cylinder can be designed to be particularly robust.
- the piston has a first and a second piston section and the hub has a first and a second hub section.
- the two piston sections have different inner diameters, so that the stepped annular piston is formed.
- the piston is designed to be Z-shaped when viewed in cross section.
- the two hub sections have different outer diameters, so that the hub is designed to be stepped in a complementary manner to the stepped annular piston.
- the first piston section and the first hub section are thus radially offset from the second piston section and the second hub section, so that an offset defining the pressure chamber is formed.
- the offset formed on the piston limits the pressure space in the axial direction and the offset formed on the hub limits the pressure space in the opposite axial direction.
- the first piston section and the first hub section as well as the second piston section and the second hub section are sealingly supported against one another in the radial direction.
- At least one sealing means is preferably arranged between the first piston section and the first hub section and between the second piston section and the second hub section in order to seal the pressure chamber in a fluid-tight manner.
- the sealing means are optionally arranged in grooves of the piston and / or the hub.
- the insulation device is supported radially on an outer circumference of the piston section offset radially inward and / or is supported axially on an annular surface of the piston formed by the offset.
- the vehicle is designed as a single or multi-lane vehicle.
- the vehicle is preferably designed as an electrically powered vehicle.
- the vehicle is preferably designed as a small or micro vehicle or as an electromobile. With only one wheel, the vehicle can be designed as an electric unicycle, for example as a so-called monowheel or solo wheel.
- the vehicle is preferred as an electric two-wheeler, in particular as an electric motorcycle, as an electric scooter, as an electric scooter, electric scooter, electric scooter, e.g. e-scooter, as a Segway, floverboard, kickboard, skateboard, longboard or the like . educated.
- the vehicle can be designed as a bicycle, in particular as an electric bicycle, for example as a pedelec or as an e-bike.
- the vehicle can alternatively be designed as a multi-lane vehicle, in particular with three or more wheels.
- the vehicle can be a transport or cargo bike, in particular a motorized or electrically driven transport or cargo bike, in particular a three-wheel or four-wheel pedelec or a rickshaw, in particular with or without a roof, or a cabin scooter.
- a transport or cargo bike in particular a motorized or electrically driven transport or cargo bike, in particular a three-wheel or four-wheel pedelec or a rickshaw, in particular with or without a roof, or a cabin scooter.
- Figure 1 shows a vehicle with two wheels, the vehicle as a
- Electric scooter is designed
- Figure 2 is a sectional view of a braking device for the vehicle
- FIG. 1 as an embodiment of the invention
- FIGS. 3a, b show different perspective views of the braking device from FIG. 2;
- FIGS. 4a, b show two alternative designs of an insulation device for the braking device from FIG. 2.
- FIG. 1 shows a three-dimensional representation of a vehicle 1, the vehicle 1 being designed as an electric scooter, electric scooter or electric scooter, also known as a so-called e-scooter.
- the vehicle 1 has a wheel module 2 with a wheel 3, which forms a front wheel of the vehicle 1.
- the wheel module 2 is used, in particular, to drive the vehicle 1 electrically.
- the vehicle 1 has a flinter wheel 4, in particular a non-drive wheel, which is rotatably mounted on a vehicle frame 5 of the vehicle 1.
- the vehicle 1 has a wheel fork 6, the wheel module 2 being rotatably mounted in the wheel fork 6.
- the wheel fork 6 is pivotably connected to the frame 5 via a link 7, so that the wheel module 2 can be pivoted via the link 7 to steer the vehicle 1.
- FIG. 2 shows, in a schematic sectional illustration, a braking device 8 which is designed and / or suitable for the wheel module 2 or for the rear wheel 4 from FIG.
- the wheel 3, 4 has a wheel rim 9 and a tire 10, the tire 10 being arranged on the wheel rim 9.
- the wheel rim 9 is designed as a steel, aluminum or plastic rim.
- the tire 10 is designed as a rubber tire filled with air.
- the wheel 3, 4 is arranged on a wheel axle 11 which defines an axis of rotation D with its longitudinal axis.
- the wheel rim 8 is rotatably mounted on the wheel axle 11, for example by means of bearing devices, not shown, the wheel axle 11 being fixed on the wheel fork 6, for example in the case of the front wheel.
- the braking device 8 is designed as a friction brake which is arranged on one side of the wheel rim 9 to transmit a braking torque.
- the braking device 8 has an annular brake lining 12, in particular one that encircles the axis of rotation D, and one designed as a brake disk Brake body device 13 on.
- the brake lining 12 and the brake body device 13 are arranged coaxially to one another with respect to the axis of rotation D.
- the brake lining 12 is non-rotatably mounted with respect to the axis of rotation D on an axial end face of the wheel rim 9, so that the brake lining 12 is carried along by the wheel rim 9 during ferry operation and rotates about the axis of rotation D.
- the brake body device 13 can be moved in an axial direction AR towards the brake lining 12 and away from the brake lining 12 in an opposite axial direction AG.
- the brake device 8 also includes a concentric brake cylinder 14 for converting a braking force F1 to the brake body device 13.
- the brake cylinder 14 can be actuated hydraulically, for example, the brake cylinder 14 being designed as a so-called slave cylinder and with a master cylinder, not shown, over a hydraulic path is fluidly connected.
- the brake cylinder 14 has an inner and an outer housing part 15, 16, the housing parts 15, 16 being arranged concentrically to one another with respect to the axis of rotation D and being displaceable and / or rotatable relative to one another in the axial direction.
- the two housing parts 15, 16 together form an annular housing encircling the axis of rotation D, a pressure chamber 17 encircling the axis of rotation D being formed between the two housing parts 15, 16.
- the pressure chamber 17 is filled with a fluid, for example with a hydraulic oil, and is fluidically connected to the master cylinder via a fluid line, not shown, to form the hydraulic path.
- the inner housing part 15 has a hollow cylindrical hub 18, as a housing component, and a support ring 19, as a support component.
- the hub 18 and the support ring 19 are supported on one another in the axial direction and coupled to one another in a rotationally fixed manner via the wheel axle 11.
- the hub 18 and the support ring 19 each have a through opening 20 through which the wheel axle 11 is guided or inserted.
- the support ring 19 serves to support the torque of the brake body device 13, the brake body device 13 for this purpose in the circumferential direction about the axis of rotation D supported on the support ring 19, so that torques acting on the brake body device 13 are introduced into the wheel axle 11 via the support ring 19.
- the outer housing part 16 is designed as a hollow cylindrical piston 21 which is arranged coaxially and / or concentrically to the hub 18 and is supported radially on its outer circumference.
- the piston 21 is designed as a stepped annular piston and for this purpose has a first and a second piston section 21a, b, which are radially offset from one another. Viewed in a cross section, the piston 21 is thus stepped, in particular Z-shaped.
- the hub 18 forms a complementary counterpart to the piston 21 and for this purpose has a first and a second hub section 18a, b, which are offset radially from one another in accordance with the two piston sections 21a, b.
- a radial offset 22 is formed on the hub 18 and the piston 21, which delimits the pressure chamber 17 in the axial direction AR and in the opposite axial direction AG.
- the pressure chamber 17 is also delimited by the first piston section 21a and in a radial opposite direction RG by the second hub section 18b.
- the first piston section 21a is supported radially via a first sealing means 23a on the first hub section 18a, the first sealing means 23a being received in an annular groove made in the first piston section 21a.
- the second piston section 21b is supported radially via a second sealing means 23b on the second hub section 18b, the second sealing means 23b being arranged in an annular groove made in the second hub section 18b.
- the brake body device 13 has a pressure plate 24 which is used to transmit the braking force F1 to the friction lining 12.
- the pressure plate 24 is designed as an annular disk and is arranged coaxially and / or concentrically with the brake cylinder 14 with respect to the axis of rotation D.
- the pressure plate 24 has a central opening 25, the brake cylinder 14 being passed through it in sections.
- the brake body device 13 has an annular contact plate 26, for example a steel plate, which is arranged on an axial end face of the pressure plate 24 facing the wheel rim 9.
- the Contact plate 26 is used for contacting the brake lining 12 and can be exchanged in a simple manner as a wear part.
- a column of fluid is displaced by the master cylinder in the direction of the brake cylinder 14, fluid flowing into the pressure chamber 17 and the piston 21 being subjected to fluid pressure.
- the piston 21 then performs a Flub in the axial direction AR and transmits the braking force F1 generated by the fluid pressure to the brake body device 13, in particular the pressure plate 24.
- the brake body device 13 is displaced in the axial direction AR and applied to the brake lining 16 and / or pressed against it.
- the contact plate 26 of the brake body device 13 makes contact with the brake lining 16, so that the braking torque is generated by a frictional connection in order to brake the rotating wheel 3, 4 by friction between the contact plate 26 and the brake lining 12.
- the fluid column is shifted again in the direction of the master cylinder, so that the brake body device 13 is moved away from the brake lining 12 and / or can be moved in the opposite axial direction AG.
- the braking device 8 can have, for example, a restoring mechanism, not shown, which acts on the braking body device 13 and the piston 21 in the opposite axial direction AG with a restoring force F2.
- sustained temperatures are generated in the braking device 8.
- these temperatures can develop in the case of heavy braking on the brake body device 13. This can have a negative effect on heat-sensitive components inside the concentric brake cylinder 14, so that the latter must be thermally insulated in order to avoid damage to the system.
- the brake body device 13 has a cooling structure 27 on one side on an axial end face facing away from the wheel rim 9.
- the cooling structure 27 has several cooling fins 28 for exchanging thermal energy of the brake body device
- the braking heat generated during braking can therefore largely be dissipated to the environment via the cooling structure 28 of the pressure plate 24 by convection. Nevertheless, some of the braking heat can also be passed on to the components of the brake cylinder 14.
- an insulation device 29 is arranged axially between the piston 21 and the pressure plate 24, which the brake cylinder
- the insulation device 29 has a material which is characterized by a particularly low heat transfer coefficient compared to the pressure plate 24.
- the pressure plate 24 is made of aluminum or an aluminum alloy, for example.
- the insulation device 29 is made, for example, of a composite material which has, for example, organic and / or inorganic components such as sand, stone, lime or the like. Alternatively or optionally in addition, however, the insulation device 29 can also be made of a heat-resistant plastic or ceramic.
- the isolation device 29 is preferably designed in the shape of a ring.
- the insulation device 29 is supported in the radial direction RR on an inner circumference of the pressure plate 24 and in the opposite radial direction RG on an outer circumference of the second piston section 21b.
- the isolation device 29 rests on the pressure plate 24 and in the axial opposite direction AG on a shoulder of the piston 21 formed by the offset 22.
- the braking force F1 acting on the piston 21 is transmitted to the pressure plate 24 with the interposition of the isolation device 29.
- Figures 3a, b each show the braking device 8 from Figure 2.
- the braking device 8 is shown in Figure 3a in a perspective view from the rear and in Figure 3b is shown in a perspective view from the front.
- the hub 18 and the support ring 19 each have two diametrically arranged depressions 30 which are made in the inner circumference of the through openings 20 and extend in the axial direction.
- the wheel axle 11, as shown in Figure 2 can have corresponding elevations, the wheel axle 11 being inserted into the through opening 20 during assembly and engaging in the recesses 30 via the elevations so that the hub 18 and the support ring 19 on the wheel axle 11 counteract Are secured against twisting.
- the support ring 19 for torque support has a support contour 31 which is formed by support wings 32 projecting radially outward.
- the pressure plate 24 has a counter-contour 33 which is complementary to the support contour 31 and which is formed by radially introduced grooves 34 as recesses.
- Each of the support wings 32 is in engagement with one of the grooves 34, the pressure plate 24 being arranged on the support contour 31 such that it can be longitudinally displaced in the axial direction and non-rotatably in the circumferential direction.
- Figures 4a, b each show the isolation device 29 from Figure 2.
- Figure 4a shows the isolation device 29 in an axial view as a first embodiment of the invention.
- the isolation device 29 is formed by an annular isolation section 35, which can be pushed onto the second cylinder section 18b coaxially with respect to the axis of rotation D.
- the annular insulation section 35 can lie flat against the piston 21 and / or the pressure plate 24. In particular, thermal insulation is implemented in the axial direction and a heat path running between piston 21 and pressure plate 24 is interrupted.
- FIG. 4b shows the insulation device 29 in a perspective view as a second exemplary embodiment of the invention.
- the insulation device 29 has an insulation section 36 in the form of a circular ring segment and two axial insulation sections 37 protruding in the axial direction, which are located directly on the Connect circular segment-shaped insulation section 36.
- several of the circular ring segment-shaped insulation sections 36 can be combined to form an annular insulation component.
- the axial insulation sections 37 are designed as plate-shaped webs which can each be arranged between the support contour 31 and the counter contour 33. In this case, insulation sections 36 rest in the circumferential direction around the axis of rotation against one of the support wings 32 and / or one of the grooves 34.
- thermal insulation in the axial direction is implemented by the insulation section 36 in the form of a circular ring segment and a heat path running between pressure plate 24 and piston 21 is interrupted.
- thermal insulation is implemented in the circumferential direction by the axial insulation sections 37 and a heat path running between pressure plate 24 and support ring 19 is interrupted.
- the axial insulation sections 36 can take on the function of a guide or sliding sleeve.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Braking Arrangements (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019125391.8A DE102019125391A1 (de) | 2019-09-20 | 2019-09-20 | Bremsvorrichtung für ein Fahrzeug sowie Fahrzeug mit der Bremsvorrichtung |
PCT/DE2020/100732 WO2021052530A1 (de) | 2019-09-20 | 2020-08-21 | Bremsvorrichtung für ein fahrzeug sowie fahrzeug mit der bremsvorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4031776A1 true EP4031776A1 (de) | 2022-07-27 |
Family
ID=72340159
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20765190.2A Withdrawn EP4031776A1 (de) | 2019-09-20 | 2020-08-21 | Bremsvorrichtung für ein fahrzeug sowie fahrzeug mit der bremsvorrichtung |
Country Status (5)
Country | Link |
---|---|
US (1) | US20220348285A1 (de) |
EP (1) | EP4031776A1 (de) |
CN (1) | CN114364898A (de) |
DE (1) | DE102019125391A1 (de) |
WO (1) | WO2021052530A1 (de) |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2581941A (en) * | 1946-07-24 | 1952-01-08 | Firestone Tire & Rubber Co | Brake with lubricated disks |
GB727469A (en) * | 1951-09-06 | 1955-04-06 | Dunlop Rubber Co | An improved vehicle wheel and brake assembly |
US2756848A (en) * | 1955-01-18 | 1956-07-31 | Goodyear Aircraft Corp | Conical coil spring brake lining retention device |
US2975598A (en) * | 1956-12-17 | 1961-03-21 | A P D Co | Sealing ring |
US3547233A (en) * | 1968-09-23 | 1970-12-15 | Minnesota Automotive Inc | Pressure and wear compensator for caliper disk brake |
FR2188731A5 (de) * | 1972-06-13 | 1974-01-18 | Luchier Jean Ja Ques | |
FR2289389A1 (fr) * | 1974-10-31 | 1976-05-28 | Zeppellini Serge | Frein de roue pour vehicules, en particulier pour motocyclettes |
US6401882B1 (en) * | 2000-06-30 | 2002-06-11 | Shimano Inc. | Heat insulator for disc brake |
DE20016878U1 (de) | 2000-09-29 | 2001-04-12 | Gustav Magenwirth GmbH & Co, 72574 Bad Urach | Tretroller mit Bremseinrichtung |
JP5888273B2 (ja) * | 2012-08-28 | 2016-03-16 | 株式会社アドヴィックス | 電動パーキングブレーキ用駆動装置 |
DE102013021122A1 (de) * | 2013-12-13 | 2015-06-18 | Lucas Automotive Gmbh | Bremskraftverstärker für eine Kraftfahrzeugbremsanlage mit Rückhalteeinrichtung für Rückstellfeder und Bremskraftverstärkungsanordnung |
DE102015001860A1 (de) * | 2015-02-12 | 2016-08-18 | Lucas Automotive Gmbh | Hauptbremszylinderanordnung für eine hydraulische Kraftfahrzeugbremsanlage |
CN104728313B (zh) * | 2015-03-31 | 2017-04-05 | 南车戚墅堰机车车辆工艺研究所有限公司 | 一种车用制动装置 |
-
2019
- 2019-09-20 DE DE102019125391.8A patent/DE102019125391A1/de not_active Withdrawn
-
2020
- 2020-08-21 WO PCT/DE2020/100732 patent/WO2021052530A1/de unknown
- 2020-08-21 EP EP20765190.2A patent/EP4031776A1/de not_active Withdrawn
- 2020-08-21 US US17/762,117 patent/US20220348285A1/en not_active Abandoned
- 2020-08-21 CN CN202080062855.0A patent/CN114364898A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
US20220348285A1 (en) | 2022-11-03 |
DE102019125391A1 (de) | 2021-03-25 |
CN114364898A (zh) | 2022-04-15 |
WO2021052530A1 (de) | 2021-03-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69929139T2 (de) | Scheibenbremse | |
WO2021000985A1 (de) | Bremseinheit für ein fahrzeug, radmodul mit der bremseinheit sowie fahrzeug mit der bremseinheit und/oder dem radmodul | |
US4062427A (en) | Wheel and disk brake assembly for motorcycles | |
EP3241688A1 (de) | Radnabe für ein fahrzeug und bremssystem dafür | |
WO2020253904A1 (de) | Radmodul für ein fahrzeug sowie fahrzeug mit dem radmodul | |
DE102019116423B4 (de) | Bremsvorrichtung für ein Fahrzeug, Radmodul und Fahrzeug mit der Bremsvorrichtung oder dem Radmodul | |
EP3986777B1 (de) | Radmodul für ein fahrzeug und fahrzeug mit dem radmodul | |
EP4031776A1 (de) | Bremsvorrichtung für ein fahrzeug sowie fahrzeug mit der bremsvorrichtung | |
DE102020117849A1 (de) | Bremsvorrichtung für ein Fahrzeug sowie Fahrzeug mit der Bremsvorrichtung | |
DE102019125767A1 (de) | Bremsvorrichtung für ein Fahrzeug | |
EP3986776B1 (de) | Bremseinheit für ein fahrzeug, bremsvorrichtung mit der bremseinheit sowie fahrzeug mit der bremseinheit und/oder der bremsvorrichtung | |
DE102019129137A1 (de) | Bremsvorrichtung für ein Fahrzeug sowie Fahrzeug mit der Bremsvorrichtung | |
DE102021105199A1 (de) | Drehmomentabstützanordnung für eine Bremseinheit zur Integration in ein Fahrzeug, Bremseinheit mit der Drehmomentabstützanordnung sowie Fahrzeug mit der Bremseinheit | |
DE102021118995A1 (de) | Bremsvorrichtung für ein Fahrzeug sowie Fahrzeug mit der Bremsvorrichtung | |
DE102020111310B4 (de) | Bremsvorrichtung für ein Fahrzeug und Fahrzeug mit der Bremsvorrichtung | |
DE102019129246A1 (de) | Bremsvorrichtung für ein Fahrzeug sowie Fahrzeug mit der Bremsvorrichtung | |
DE102019122594B4 (de) | Bremsvorrichtung mit zentralem Druckanschluss sowie Fahrzeug mit der Bremsvorrichtung | |
DE102021105728A1 (de) | Bremseinheit für ein Fahrzeug sowie Fahrzeug mit der Bremseinheit | |
DE102022113216A1 (de) | Bremsvorrichtung für ein Fahrzeug mit zwei Rückstelleinrichtungen sowie Bremssystem mit der Bremsvorrichtung | |
DE102020130341A1 (de) | Radmodul für ein Fahrzeug sowie Fahrzeug mit dem Radmodul | |
DE102019122610A1 (de) | Radmodul für ein Fahrzeug sowie Fahrzeug mit dem Radmodul | |
DE102019122595A1 (de) | Bremsvorrichtung für ein Fahrzeug | |
DE102019134005A1 (de) | Bremseinheit für eine Bremsvorrichtung eines Fahrzeugs, Bremsvorrichtung mit der Bremseinheit und Fahrzeug mit der Bremsvorrichtung | |
DE102021120480A1 (de) | Radmodul für ein Fahrzeug und Fahrzeug mit dem Radmodul | |
DE102019128011A1 (de) | Bremsvorrichtung für ein Fahrzeug, Fahrzeug mit der Bremsvorrichtung und Verfahren zur Verschleißnachstellung mit einer Nachstellvorrichtung der Bremsvorrichtung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20220420 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Effective date: 20230215 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230523 |